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SubjectRe: [PATCH v2 08/20] x86, ACPI: Find acpi tables in initrd early from head_32.S/head64.c
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On Sun, Mar 10, 2013 at 3:25 AM, Pekka Enberg <penberg@kernel.org> wrote:
>
> What is preventing us from making the 64-bit variant also work in flat
> mode to make the code consistent and not hiding the differences under
> the rug? What am I missing here?

Boot loader could start kernel from 64bit directly from
from arch/x86/boot/compressed/head_64.s::startup_64.

initrd can be loaded by 64bit bootloader above 4G.

So we even switch back to 32bit flat mode, we still can not access those initrd
directly.

Thanks

Yinghai


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